Ravenscar alum works and National Trust centre

Alum, used to fix dyes, was quarried and processed at Ravenscar from 1640 to 1862, and the ruins of the works, with their settling tanks and steeping pits, are laid out on the cliff top below the village. The National Trust visitor centre on the main street explains the industry, the geology and the Victorian plan to build a resort here that attracted almost no buyers. The seals are on the rocks below.